You probably think that all slytherin students or residents are untrustworthy or messy? Well on the outside looking in it can come off that way. When you think of Slytherin Draco Malfoy comes to mind, the son of Lucious Malfoy who believes that muggles should not be allowed to practice or learn magic. The house of Slytherin was founded by a pure blood wizard who spoke parselmouth went by the name of Salazar Slytherin. His distrust for muggle-born wizards and witches caused a disruptance with the other founders of Hogwarts. Salazar created the concealing chamber which was home to a snake, before leaving the school. When choosing students for his house, it was based on how cunning, how much ambition and blood purity they had. Slytherin a element is water since snakes and lochs are known as fluid and flexible creatures.
The reason behind creating or constructing the chamber of secrets was to get rid of all the muggle born students , which was in the control of Tom Riddle (also known as Lord Voldamort), which is the heir of Slytherin.
⚪️Tom Marvolo Riddle
⚫️ Regulus Black
💚 Bellatrix Leatrange
⚪️ Bloody baron